Multilateration method for locating GNSS spoofing attacks affecting substation clocks

Colin Kelsey, David Laverty, John O'Raw

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Modern electricity substations are reliant on precision time synchronization for operation of protection and control systems. It is common for substations to be synchronized by means of Global Navigation Satellite System (GNSS) signals. This represents a cyber physical vulnerability to the electrical infrastructure in the form of jamming and spoofing attacks. In previous work, the authors describe a mechanism whereby multiple substation GNSS clocks can be used in tandem to identify a GNSS spoofing attack. This paper describes a method to identify the point of origin of a GNSS spoofing signal attacking an electricity substation using multilateration. A full derivation of the method is presented, and a worked example given.

Original languageEnglish
Title of host publicationProceedings of the 33rd Irish Signals and Systems Conference, ISSC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781665452274
ISBN (Print)9781665452281
DOIs
Publication statusPublished - 19 Jul 2022
Event33rd Irish Signals and Systems Conference, ISSC 2022 - Cork, Ireland
Duration: 09 Jun 202210 Jun 2022

Publication series

NameIrish Signals and Systems Conference: Proceedings
ISSN (Print)2688-1446
ISSN (Electronic)2688-1454

Conference

Conference33rd Irish Signals and Systems Conference, ISSC 2022
Country/TerritoryIreland
CityCork
Period09/06/202210/06/2022

Keywords

  • Cyber Physical Security
  • GNSS
  • GPS
  • Multilateration
  • PMU
  • Spoofing
  • Synchrophasor

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Computer Vision and Pattern Recognition
  • Information Systems
  • Signal Processing
  • Control and Optimization

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